[Drawer] Fix duplicate keys when re-using icons (#287)
[Drawer] Fix duplicate keys when re-using icons (#287)

* Duplicate keys when re-using icons

It's possible to show a variety of list items with the same icon (`star-border` vs `star` for example). This causes errors and can be avoided by allowing users to specify a key instead of defaulting to the icon.

* Update Section.react.js

* Fixed missing key prop

* Update Section.react.js

xvonabur/react-native-material-ui,xotahal/react-native-material-ui